C / C++ / MFC

11-Jun-07 6:05

Did you consider asking your question here?

mikobi wrote:
But I want now to have a personal header(Name of society, date and so on) on my Excell Sheet.

So can't you just assign values to those cells?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Edit control

tom groezer11-Jun-07 4:47

11-Jun-07 4:47

How do I get to know read individual lines from a multiline edit control?
Let me know the chunk of code. I do know of windows API to achieve the same.

David Crow11-Jun-07 6:02

11-Jun-07 6:02

tom groezer wrote:
llinelength = ::SendMessage(hwnd, (UINT) EM_GETLINE, index, (LPARAM)(LPCTSTR)buffer);

What is index?

tom groezer wrote:
Now I have to use the a call to SendMessage with EM_GETLINE. How do I do that?

What exactly is your question: how to use the return value of EM_GETLINECOUNT, or how to send the EM_GETLINE message?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

tom groezer11-Jun-07 6:08

11-Jun-07 6:08

This is the way i have implemented to read the lines from edit control.

LRESULT l_numEvents = ::SendMessage(hwnd, (UINT)EM_GETLINECOUNT, 0, 0);
LRESULT llinelength = ::SendMessage(hwnd, (UINT)EM_LINELENGTH, index, 0); index = 0 for first item
llinelength = ::SendMessage(hwnd, (UINT)EM_GETLINE, index, (LPARAM)(LPCTSTR)tbuffer);

I'm not able to execute the last staement properly.

MSDN says that the last parameter is "A pointer to the buffer that receives a copy of the line. Before sending the message, set the first word of this buffer to the size, in TCHARs, of the buffer. For ANSI text, this is the number of bytes; for Unicode text, this is the number of characters. The size in the first word is overwritten by the copied line.

How do I achieve what is mentioned in italisized code.

David Crow11-Jun-07 6:22

11-Jun-07 6:22

Wouldn't it make more sense to just send the control a WM_GETTEXT message? You can then parse the buffer (as individual lines) as necessary.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

tom groezer11-Jun-07 8:29

11-Jun-07 8:29

How do I parse independent lines? is it something ot do with \r\n

David Crow11-Jun-07 8:35

11-Jun-07 8:35

It could be \r or \n or a combination of both.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

tom groezer11-Jun-07 21:04

11-Jun-07 21:04

Actually I wish to read one line at a time, do some processing and save it to the file. A multileine CEdit control do provide the logic to read one line at a time.

David Crow12-Jun-07 2:30

Find Parent Dialog data in custom control on dialog? [modified]

12-Jun-07 2:30

tom groezer wrote:
A multileine CEdit...

You're using MFC? Why in the world would you be bothering with sending messages then? Confused | :confused:

If you really want to get one line at a time from the control, see CEdit::GetLine().

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

ldsdbomber11-Jun-07 4:00

Re: Find Parent Dialog data in custom control on dialog?

11-Jun-07 4:00

I've used a customised list control that does alternate row shading but am also reading an article on how to get red text programmatically. As I'd like this too, I have added the necessary handling of NM_CUSTOMDRAW etc (well, I've found it in the shaded row source file),

what I want to do now is

if(some member variable in my single dialog)
then write this line in red

otherwise
write it in black

since I am in the function
void CColoredListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)

what I want to know is how I can "get at" the parent dialog itself that has this listcontrol within it

something like

<getatthe cmaindialog="">.accessvariable

maybe

CWnd *GetParent(); is the first part, but then how do you get at the member variable (integer array that's within the parent dialog

I then thought of something like

CTestFolderBrowseDlg* myDlg = (CTestFolderBrowseDlg*)mainDlg;

and then using mainDlg as normal, but I can't include the header for my main dialog in this source file without it complaining, so I think I'm not doing this in the proper manner

for example if I put
#include "TestFolderBrowseDlg.h"

into ColoredListCtrl.cpp

it starts complaining about

testfolderbrowsedlg.h(33) : error C2065: 'IDD_TESTFOLDERBROWSE_DIALOG' : undeclared identifier
testfolderbrowsedlg.h(33) : error C2057: expected constant expression

which aren't present without the include to TestFolderBrowseDlg, but then the cast to myDlg from CWnd doesn't work

-- modified at 12:16 Monday 11th June, 2007

ldsdbomber11-Jun-07 6:21

Re: Find Parent Dialog data in custom control on dialog?

11-Jun-07 6:21

OK, this is what I am now trying in the function from the alternate shaded list view

void CColoredListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)

...

////////////

LVITEM lvi;
memset(&lvi, 0, sizeof(lvi));

lvi.mask = LVIF_TEXT;
lvi.state = 0;
lvi.stateMask = 0;

unsigned char LVtext[16];
lvi.cchTextMax = 15;
// Length of string to be copied into pszText member

lvi.pszText = (LPTSTR)LVtext;
// String buffer for pszText member

// Nota bene : starts at zero (item) and ends at 'lCols' (last subitem) :
lvi.iSubItem = 5; // 6 columns in total, I assume that means 5 is the last one, also tried 4

// Retrieve the text in an item or a subitem of line 'i' :
mainDlg->SendMessage(LVM_GETITEMTEXT, (WPARAM) 0, (LPARAM) &lvi);

CString resultText(LVtext);
if(!strcmp((LPCSTR)LVtext, "Failed"))
{
do stuff...
}
///////////

it's never going into the do stuff bit. "Failed" is definitely being written/drawn in the listview report in the last column as per a SetItem call.

It would be easier if I could work out how to just get at data belonging to the dialog class itself that holds the listview control, but failing that, am not sure what I am doing wrong here.

Mark Salsbery11-Jun-07 6:54

Re: Find Parent Dialog data in custom control on dialog?

11-Jun-07 6:54

ldsdbomber wrote:
mainDlg->SendMessage(LVM_GETITEMTEXT, (WPARAM) 0, (LPARAM) &lvi);

The wParam should be the index of the item - are you always looking at item 0?

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

ldsdbomber11-Jun-07 21:27

Re: Find Parent Dialog data in custom control on dialog?

11-Jun-07 21:27

no, I tried passing iRow first and that didn't work either (iRow presumably is the right parameter)

void CColoredListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
*pResult = 0;

LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)pNMHDR;
int iRow = lplvcd->nmcd.dwItemSpec;

switch(lplvcd->nmcd.dwDrawStage)
{
case CDDS_PREPAINT :
{
*pResult = CDRF_NOTIFYITEMDRAW;
return;
}

// Modify item text and or background
case CDDS_ITEMPREPAINT:
{

// ACCESS errTable here, and change font accordingly
CWnd* mainDlg = GetParent();
// CTestFolderBrowseDlg* myDlg = (CTestFolderBrowseDlg*)mainDlg;

////////////

LVITEM lvi;
memset(&lvi, 0, sizeof(lvi));

lvi.mask = LVIF_TEXT;
lvi.state = 0;
lvi.stateMask = 0;

unsigned char LVtext[16];
lvi.cchTextMax = 15;
// Length of string to be copied into pszText member

lvi.pszText = (LPTSTR)LVtext;
// String buffer for pszText member

// Nota bene : starts at zero (item) and ends at 'lCols' (last subitem) :
lvi.iSubItem = 5;

// Retrieve the text in an item or a subitem of line 'i' :
mainDlg->SendMessage(LVM_GETITEMTEXT, (WPARAM) iRow, (LPARAM) &lvi);

CString resultText(LVtext);
if(!strcmp((LPCSTR)LVtext, "Failed"))
{
do something here...
}
///////////

lplvcd->clrText = RGB(0,0,0);
// If you want the sub items the same as the item,
// set *pResult to CDRF_NEWFONT
*pResult = CDRF_NOTIFYSUBITEMDRAW;
return;
}

// Modify sub item text and/or background
case CDDS_SUBITEM | CDDS_PREPAINT | CDDS_ITEM:
{

if(iRow %2){
lplvcd->clrTextBk = m_colRow2;
}
else{
lplvcd->clrTextBk = m_colRow1;
}

*pResult = CDRF_DODEFAULT;
return;
}
}

}

Mark Salsbery12-Jun-07 6:31

Passing parameters to Thread function.

12-Jun-07 6:31

>>lvi.iSubItem = 5; // 6 columns in total, I assume that means 5 is the last one, also tried 4

Also. subitems are 1 based. If you have 6 columns, subitem 6 is the last column.

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

priyank_ldce11-Jun-07 3:33

priyank_ldce

11-Jun-07 3:33

Hi,

I am making one application in VC++.NET. I want to pass one integer parameter to one thread function. How can I pass parameter to thread functions? My code is as below.

Thread function

public class TestThread
{
public:
	static void ThreadProc()
	{
		...
	}
};

Thread function call

Thread* myThread = new Thread(new ThreadStart(&TestThread::ThreadProc));
myThread->Start();

I want to pass one integer parameter in ThreadProc().

Thanks in Advance
Priyank Raval

Re: Passing parameters to Thread function.

KarstenK11-Jun-07 3:47

KarstenK

11-Jun-07 3:47

a global variable could to the job. Or has the ThreatStart-class overloaded constructors?

Greetings from Germany

Re: Passing parameters to Thread function. [modified]

Mark Salsbery11-Jun-07 6:58

Re: Passing parameters to Thread function.

11-Jun-07 6:58

Global variable?? NO! This is C++! Derive a class from Thread and you can make whatever
constructor and add whatever member variables you want

*EDIT ack it's sealed

Mark

-- modified at 13:05 Monday 11th June, 2007

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Mark Salsbery11-Jun-07 7:22

Re: Passing parameters to Thread function.

11-Jun-07 7:22

I still stand by my "this is C++ response Smile | :)

I thought Nish would have this covered...

How to pass data to worker threads[^]

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

ThatsAlok11-Jun-07 20:03

ThatsAlok

11-Jun-07 20:03

hi priyank please ask vc.net related question here[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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Quick change of class of custom control?

ldsdbomber11-Jun-07 3:26

Re: Quick change of class of custom control?

11-Jun-07 3:26

If you have a standard dialog control and you've done some code for it, but then find a custom control that's based on that, is there an easy way to make the control be of that new class, eg I've done something with a listview but if i wanted to try the alternate shaded row control, can I quickly/easily do that, or is it going to get so messy it's best to start with a new custom control?

http://www.codeproject.com/listctrl/coloredlistctrl.asp[^]

ldsdbomber11-Jun-07 3:29